All cars wheel fitment and tire size guide

BMW 650i wheel sizes

Year	Wheel size	Offset	Bolt pattern	Tire size
BMW 650i ABA-EH48
2005	18x8.0	14	5x120	245/45R18 front
	18x8.0	14	5x120	245/45R18 front
	18x9.0	18	5x120	245/40R18 rear
	18x9.0	18	5x120	245/40R18 rear
2007	18x8.0	14	5x120	245/45R18 front
2007	18x9.0	18	5x120	245/40R18 rear
BMW 650i ABA-EK48
2005	18x8.0	14	5x120	245/45R18 front
2005	18x9.0	18	5x120	245/40R18 rear
2007	18x8.0	14	5x120	245/45R18 front
2007	18x9.0	18	5x120	245/40R18 rear

Wheel size BMW 650i:
PCD 5x120 diametr 18, width for 8J to 9J, offset for 14 to 18. Similar to BMW 6(E64/E63) 645i 2010

Tire size 18 to 18, width 245 to 245 and tire aspect 40 to 45.
Smallest tire size: 245/40R18, Largest: 245/45R18.